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Questions and Answers
______ is the medium, channel or path where light signal travels. It is the newest and probably the most efficient type of guided transmission medium for all forms of digital communications
Optical Fiber
Alexander Graham Bell – in 1880, he experimented the transmission of sound waves over a beam of light using a device called a ______
Photophone
______ is a method of transmitting information from one place to another by sending pulses of infrared light through an optical fiber
Fiber optic communications
______ – a few years after, he successfully transmitted images through the use of a single glass fiber
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______ – in 1930, they were granted patents for scanning and transmitting television images through uncoated fiber cables
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